male lead "lets go"

Are there any dramas where the male lead thinks the female lead loves someone else (she did at first and that's why he thinks that) so he takes the noble idiocy route and lets her go she she can be with one she truly loves not knowing that the female lead has fallen for him.

The Sound of the Desert.

• Twenty again | it's a big part of the plot.
• Black | has it briefly.
• Jealousy Incarnate | has it briefly.